Car-axle box



(No Model.)`

L. PFINGST.

GAR A'XLE BOX.

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, UNITED STATES PATENT OFFICE.

LOUIS PFINGST, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF, AND W'. l.VILLIAMS AND E. C. TRACY, BOTH OF CHICAGO, lLLlNOlS.

CAR-AXLE BOX.

SPECIFICATION fcrming part of Letters Patent ivo. 354,219, datedDecember 14, 188e.

Application filed September G, ISSG. Serial No. 212,900. (No model.)

T all whom it may concern:

Beit known that I, LoUIs PFINGs'r, of the city, county, and State of NewYork, have invented a new and useful Improvement in Axle-Boxes, of whichthe following is a specification.

This invention, relates to the journal-box, bearing, and housing madeuse of in railwaycars. In this class of cars itis very important thatthe parts have freedom of movement and great strength and lightness,because these ears are often heavily loaded and subject to lateralconcussion in turning short curves and in sudden stopping and starting;and the object of my invention is to provide a box that is oil-tight anddust-proof, and that combines freedom of movement with strength,lightness, and durability.

I make use of a combined sleeve and dusteollar around the j ournal-thesleeve to take the wear and the dust-collar to act with a dusteap uponthe box; and the journal-bearing is pivoted within the box, so as toaccommodate itself to the inequalities in the position of the car upontheaxle, and the box is made with lateral arms and base-pieces for-thesprings, and vertical guide-rods are fastened to the sill of the car andconnected with a braced bottom plate, and the springs surround theguide-rods, and a erossbearer and rubber buffers limit the downwardmovement when the car is heavily loaded. An oil-receptacle and wickprovide a means of lubrication.

In the drawings, Figure 1 is a vertical section longitudinally of thejournal. Fig. 2 is a vertical section transversely of the journal; andFig. 3 is a plan view, partially in section.

The axle 1 is of ordinary character, and upon it is the sleeve 2, havingaround it, near the back end, the dust-collar 3. This sleeve with itscollar is removable from the axle when worn out, and another sleeve canbe substituted, the same being pressed on by a suitable press orotherwise. l

The journal-box is of a suitable size` and shape, and the bearing 4 isover the sleeve of the axle, and it is made hollow for the reception ofoil, and there is a removable brass, 21, upon the under side of thisbox, to rest upon the axlesleeve.

At the sides of the bearing 4 are pivot-lugs 6, and upon these rest theU-shaped flanges 7, upon the inner faces of the box 5, so that the partsare free to swing upon the pivot-lugs and allow the brass 21 to setevenly upon the sleeve when one side of the car is higher than theother. The brass 21 and base of the bearing 4 are slotted in line withthe axle, and a wick is inserted in said slot to act as a medium forconveying the oil in the bearing 4 to the axle-sleeve, to constantlylubricate the same.

Outsidethe box 5 there are the lateral arms 8, extending at front andbaeln'aud terminating as ring-shaped spring-bases 9, through which thevertical guide-bars pass freely. The arms 8 are considerably the widestat the box 5, and taper to the spring-bases, so as to be of the properstrength.

At the back of the box 5 is a septum, 23, and a circular projectingflange, 24, and within the latter is the dust-ringx25, that is drawntoward the dust-collar 3 by the bolts 26 and the helical springs 27,that are within recesses in the j ournal-box and act against the headsof the bolts 26. rFhis dust-ring yields laterally within the iiange 24,and therfaces of dust-ring and collar can slide on each other as thelatter revolves against the former, so that dust is excluded. l

The guiderods l() are secured at their upper ends within the car-sill12, and at their lower ends is the bottom plate, 13, with braces 14 atthe ends extending up to the sill of the car, and the lateral braces 30,that extendinwardly beneath the car. The vertical guide-rods 11 arebolted at their lower ends to the plate 13 and pass at their upper endsinto the sill 12, and these rods 11 areat the sides of the journal-boxand guide the same, and at their upper ends are the socket-plates 19, onthe under side of the car-sill, and at 16 is abearer above the journal-box 5, having a central rest upon such box, and ring-bearings atthe ends for the rubber 'buffers 17, that surround the rods 11. Thesebuffers limit the movement when the car is heavily loaded and preventconcussion.

The spiral or helical springs between the spring-bases 9 and the carsillare of a sucient strength to support the car and its ordinary load.

It will now be apparent that this improve ment allows freedom ofmovement in the parts,

IOO

-journal-box.

I claim as my invention- 1. The Combination, with the ear-axle, of thesleeve and dust-collar on the same, the bearing 4, having pivot-lugs 6,the journalbox having internal U-shaped flanges for the pivots, and theseptum, lange, dust-ring, bolts, and springs, substantially as setforth.

2. The combination, in ajournal-box, with the septum 23 and circularprojecting flange 24, of a sleeve, 2, and dust-collar 3, formedtogethei` andsurronnding the axle, the dustring 25 within the flange 24,and the bolts and springs to hold the ring 25 against the flat face ofthe collar 3, substantially as specified.

3. The combination, With the journal-box having the lateral arms 8 andring-shaped bases 9, of the guide-rods passing through the saine and thesprings between the bases and the oar-sill, the bearer 16, rubberbuffers 1 7, and guide-rods 11,substantially as set forth.

4. The combination, with the car axle, wheels, and axle-boxes, ofremovable sleeves upon the journals of the axle, each sleeve having uponand integral with it a dust-excluding ring, substantially as speeied.

5. The. combination, with the oar-axle, of a bearing, 4, havingpivot-lugs 6, and the journal-box having internal U-shaped anges forthe-pivots, substantially as specified.

6. The Combination, with the axle 1, its sleeve 2, box 5, and ianges 7,of the hollow bearing 4, lugs 6, and the brass 21, said brass 21 and thebase of the bearing being slotted and having a Wick therein,substantially as specified.

Signed by me this 3d day of September, A. D. 1886.

LOUIS PFINGST.

Vtnesses:

GEO. T. PINCKNEY, WILLIAM G. MoTT.

